DEVX-60: feat: add create-task, create-pr, pre-push-check tools and devx.mak fragment

tests/unit/test_release.py

@@ -508,6 +508,30 @@ class TestVerifyAlignment:
         mock_run_cmd.return_value = MagicMock(returncode=0, stdout="", stderr="")
         assert verify_alignment() == 1
 
+    @patch("devx.ci.release.run_cmd")
+    @patch("devx.ci.release.get_changelog_versions")
+    @patch("devx.ci.release.get_init_version")
+    @patch("devx.ci.release.verify_tag_consistency")
+    @patch("devx.ci.release.get_all_tags")
+    @patch("devx.ci.release.get_latest_tag")
+    def test_no_latest_tag_skips_changelog_tag_check(
+        self,
+        mock_lt: MagicMock,
+        mock_tags: MagicMock,
+        mock_vtc: MagicMock,
+        mock_iv: MagicMock,
+        mock_cv: MagicMock,
+        mock_run_cmd: MagicMock,
+    ) -> None:
+        """When there is no latest tag, the CHANGELOG/tag match check is skipped."""
+        mock_lt.return_value = None  # no tags
+        mock_tags.return_value = []
+        mock_vtc.return_value = []
+        mock_iv.return_value = "0.4.4"
+        mock_cv.return_value = ["0.4.4"]  # changelog has versions but no tag to compare
+        mock_run_cmd.return_value = MagicMock(returncode=0, stdout="", stderr="")
+        assert verify_alignment() == 0
+
     @patch("devx.ci.release.run_cmd")
     @patch("devx.ci.release.get_changelog_versions")
     @patch("devx.ci.release.get_init_version")
@@ -756,6 +780,16 @@ class TestUpdateChangelog:
         assert "# Changelog" not in content
         assert "## [0.2.0]" in content
 
+    def test_no_version_section_in_changelog(self, tmp_path, monkeypatch) -> None:
+        """Changelog input without any ## [ version section is inserted as-is."""
+        changelog_file = tmp_path / "CHANGELOG.md"
+        changelog_file.write_text("# Changelog\n\n## [0.1.0] - 2026-06-20\n\n### Features\n- old thing\n")
+        monkeypatch.setattr("devx.ci.release.CHANGELOG_FILE", str(changelog_file))
+        # No ## [ section in the cliff output — should not be stripped
+        update_changelog("Some raw text without version header")
+        content = changelog_file.read_text()
+        assert "Some raw text without version header" in content
+
 
 class TestCommitReleaseChanges:
     @patch("devx.ci.release.run_cmd")